ScienceDaily (Oct. 27, 2009) — Sometimes when a patient tells his ophthalmologist that he "can't see," what he really means is "I can see, but I can no longer read or write." In a minority of Alzheimer's patients the disease shows up first as problems with vision rather than memory or other cognitive functions. But diagnosis can be difficult because standard eye exams are often inconclusive for these patients.Neuro-ophthalmologists Pierre-Francois Kaeser, MD, and Francois-Xavier Borruat, MD, Jules Gonin Eye Hospital, Switzerland, examined and followed 10 patients with unexplained vision loss who were ultimately diagnosed with the visual variant of Alzheimer's disease (VVAD). Their study -- presented at the 2009 Joint Meeting of the American Academy of Ophthalmology and the Pan-American Association of Ophthalmology (PAAO) -- describes clinical clues that may improve ophthalmologists' ability to detect VVAD and refer patients for further tests. When patients receive neurological assessment, treatment and family counseling early in the disease, outcomes may be better for all concerned.
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